EP0111591A1 - Device for the transmission of information between objects passing one another - Google Patents

Device for the transmission of information between objects passing one another Download PDF

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Publication number
EP0111591A1
EP0111591A1 EP82111964A EP82111964A EP0111591A1 EP 0111591 A1 EP0111591 A1 EP 0111591A1 EP 82111964 A EP82111964 A EP 82111964A EP 82111964 A EP82111964 A EP 82111964A EP 0111591 A1 EP0111591 A1 EP 0111591A1
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EP
European Patent Office
Prior art keywords
unit
response
response unit
information
signal
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP82111964A
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German (de)
French (fr)
Inventor
Helmut Dipl.-Ing. Zappe
Rudolf Dipl.-Phys. Dr. Steinhart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bosch Telecom GmbH
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ANT Nachrichtentechnik GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by ANT Nachrichtentechnik GmbH filed Critical ANT Nachrichtentechnik GmbH
Priority to EP82111964A priority Critical patent/EP0111591A1/en
Publication of EP0111591A1 publication Critical patent/EP0111591A1/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L25/00—Recording or indicating positions or identities of vehicles or vehicle trains or setting of track apparatus
    • B61L25/02—Indicating or recording positions or identities of vehicles or vehicle trains
    • B61L25/04—Indicating or recording train identities
    • B61L25/045—Indicating or recording train identities using reradiating tags

Definitions

  • the present invention relates to a device for transmitting information between objects that pass each other, one of each of two objects moving past one being equipped with a query unit and the other with a response unit, the query unit feeding a converter of the response unit when passing the two objects then sends out a response signal modulated with the information assigned to it.
  • Such a device is known from DE-OS 28 46 129.
  • it can be used to transmit information such as distance information or maximum permissible speeds from a track to trains.
  • a response unit is attached to each wagon, in which all the data of the respective wagon worth knowing are stored.
  • a query unit is permanently installed, which transmits the data read out from the response units to a central computer.
  • the central computer which knows the sequence of the wagons and their destination stations, can now control the switches accordingly so that the wagons are lined up correctly.
  • this information transmission system can e.g. can also be used to regulate road traffic.
  • the vehicles would be equipped with interrogation units that read information about location, traffic density, etc. from response units installed on the streets as they drive past.
  • the invention is based on the object of specifying an information transmission device of the type mentioned in the introduction, in which the response unit has the least possible circuitry.
  • the interrogation unit transmits two carrier signals, which the converter in the response unit converts into a third signal as a carrier for its own information.
  • the effort is considerably reduced by using the carrier signals to supply the answering device with energy. It then manages without its own operating supply and is not dependent on an energy source to be arranged at its installation location.
  • the figure shows an interrogation unit AF on the left-hand side and an answering unit AW on the right-hand side.
  • a demodulator D with an upstream reception filter F1 is connected to an antenna A via a first circulator Z 1 .
  • the demodulator From the response signal sent by the response unit, the demodulator recovers the information modulated onto this signal and stored in the response unit. The information is then decoded and subjected to an error correction using methods generally known to the person skilled in the art (not described in detail here), so that it can be processed further in a central computer.
  • a second circulator Z 2 is connected to the first circulator Z 1 . This switches two unmodulated carrier signals with different frequencies generated in the generators G 1 and G 2 to the antenna A 1 . Both carrier signals are emitted simultaneously by antenna A 1 and received by antenna A 2 of the response unit AW just passing through.
  • a coupler K behind the antenna A 2 in the response unit couples a larger energy portion 90% out of the received carrier signals, which is then rectified by a rectifier GL and supplied to the circuit elements in an information memory IS as operating energy.
  • a filter F 2 connected upstream of the rectifier undesirably suppresses intermodulation products created on the rectifier diodes.
  • the information store IS is e.g. equipped with ERPROM's or RAM's.
  • the clock control and addressing circuits necessary for the memory elements and familiar to the person skilled in the art will not be discussed in more detail here. If, after a short settling time, the bias voltage derived from the carrier signals is present at the information store, the reading process of the store begins.
  • the information of the memory specific to the respective response unit arrives at an amplitude modulator M, which modulates it onto a carrier, which results from a conversion of the two received carrier signals.
  • the response unit sends the third carrier unmodulated, where a functional test of the response unit can be carried out in a simple manner.
  • the response device can of course also be supplied by a specially installed operating energy source. Another possibility would be to supply the response unit with energy inductively. In these cases, the coupler K, the filter F 2 and the rectifier GL would be omitted in the circuit shown in the figure.

Abstract

The present invention relates to a device for transmitting information between objects passing one another, in which case of two objects respectively passing by one another the one is equipped with an interrogation unit (AF) and the other with a response unit (AW). When the two objects pass, the interrogation unit feeds a convertor of the response unit which then transmits a response signal modulated with the information assigned to it. In this process, the interrogation device transmits two carrier signals with different frequencies which the convertor in the response unit converts into a third signal as a carrier for its information (Fig.). <IMAGE>

Description

Die vorliegende Erfindung betrifft eine Einrichtung zur Informationsübertragung zwischen einander passierenden Objekten, wobei von jeweils zwei sich einander vorbeibewegenden Objekten das eine mit einer Abfrageeinheit und das andere mit einer Antworteinheit bestückt ist, wobei beim Passieren der beiden Objekte die Abfrageeinheit einen Umsetzer der Antworteinheit speist, die dann ein mit der ihr zugeordneten Information moduliertes Antwortsignal aussendet.The present invention relates to a device for transmitting information between objects that pass each other, one of each of two objects moving past one being equipped with a query unit and the other with a response unit, the query unit feeding a converter of the response unit when passing the two objects then sends out a response signal modulated with the information assigned to it.

Eine derartige Einrichtung ist aus der DE-OS 28 46 129 bekannt. Sie kann z.B. dazu verwendet werden, um Informationen wie etwa Entfernungsangaben oder höchstzulässige Geschwindigkeiten von einer Gleisstrecke an Züge zu übermitteln. Um beispielsweise im Rangierbetrieb die Waggons in einer gewünschten Reihenfolge zusammenzustellen, wird an jedem Waggon eine Antworteinheit angebracht, in der alle wissenswerten Daten des jeweiligen Waggons abgespeichert sind. An der Schienenstrecke ist eine Abfrageeinheit fest installiert, die die aus den Antworteinheiten herausgelesenen Daten an einen Zentralrechner übermittelt. Der Zentralrechner, der die Reihenfolge der Waggons und deren Bestimmungsbahnhöfe kennt, kann nun dementsprechend die Weichen steuern, so daß die richtige Aneinanderreihung der Waggons erfolgt.Such a device is known from DE-OS 28 46 129. For example, it can be used to transmit information such as distance information or maximum permissible speeds from a track to trains. In order, for example, to arrange the wagons in the desired order in the shunting mode, a response unit is attached to each wagon, in which all the data of the respective wagon worth knowing are stored. On the rails a query unit is permanently installed, which transmits the data read out from the response units to a central computer. The central computer, which knows the sequence of the wagons and their destination stations, can now control the switches accordingly so that the wagons are lined up correctly.

Neben der Organisation und Steuerung von gleisgebundenen Fahrzeugen läßt sich dieses Informationsübertragungssystem z.B. auch zur Regelung des Straßenverkehrs ausnutzen. Die Fahrzeuge würden in diesem Fall mit Abfrageeinheiten bestückt, die beim Vorbeifahren aus an den Straßen installierten Antworteinheiten Informationen über Ort, Verkehrsdichte etc. herauslesen.In addition to the organization and control of track-bound vehicles, this information transmission system can e.g. can also be used to regulate road traffic. In this case, the vehicles would be equipped with interrogation units that read information about location, traffic density, etc. from response units installed on the streets as they drive past.

überall, wo es um die Organisation von mobilen Gütern geht, erweist sich eine solche Informationsübertragungseinrichtung als zweckmäßig .Wherever the organization of mobile goods is concerned, such an information transmission device proves to be expedient.

Der Erfindung liegt nun die Aufgabe zugrunde, eine Informationsübertragungseinrichtung der eingangs genannten Art anzugeben, bei der die Antworteinheit einen möglichst geringen Schaltungsaufwand besitzt.The invention is based on the object of specifying an information transmission device of the type mentioned in the introduction, in which the response unit has the least possible circuitry.

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß die Abfrageeinheit zwei Trägersignale aussendet, die der Umsetzer in der Antworteinheit in ein drittes Signal als Träger für die ihr eigenen Information umsetzt.This object is achieved in that the interrogation unit transmits two carrier signals, which the converter in the response unit converts into a third signal as a carrier for its own information.

Zweckmäßige Ausführungen der Erfindung gehen aus den Unteransprüchen hervor.Appropriate embodiments of the invention emerge from the subclaims.

Dadurch, daß der Antworteinrichtung nicht nur ein sondern zwei Träger unterschiedlicher Frequenzen übermittelt werden, mit denen der Umsetzer in der Antworteinrichtung gespeist wird, ist keine eigene Oszillatorschaltung erforderlich, die den Umsetzer mit dem für die Erzeugung des Antwortsignals erforderlichen zweiten Träger versorgt.Characterized in that not only one but two carriers of different frequencies are transmitted to the answering device, with which the converter is fed in the answering device, no separate oscillator circuit is required which the converter with the necessary for the generation of the response signal Chen second carrier supplied.

Neben dieser Schaltungsvereinfachung reduziert sich der Aufwand noch erheblich durch die Ausnutzung der Trägersignale zur Energieversorgung der Antworteinrichtung. Sie kommt dann ohne eigene Betriebsversorgung aus und ist nicht auf eine an ihrem Installationsort anzuordnende Energiequelle angewiesen.In addition to this simplification of the circuit, the effort is considerably reduced by using the carrier signals to supply the answering device with energy. It then manages without its own operating supply and is not dependent on an energy source to be arranged at its installation location.

Anhand eines in der Zeichnung dargestellten Ausführungsbeispiels wird nun die Erfindung näher erläutert.The invention will now be explained in more detail with reference to an embodiment shown in the drawing.

Die Figur zeigt auf der linken Seite eine Abfrageeinheit AF und auf der rechten Seite eine Antworteinheit AW.The figure shows an interrogation unit AF on the left-hand side and an answering unit AW on the right-hand side.

In der Abfrageeinheit AF ist über einen ersten Zirkulator Z1 ein Demodulator D mit einem vorgeschalteten Empfangsfilter F1 an eine Antenne A, geschaltet. Der Demodulator gewinnt aus dem von der Antworteinheit ausgesandten Antwortsignal die diesem Signal aufmodulierte, in der Antworteinheit gespeicherte Information zurück. Mit dem Fachmann allgemein bekannten Verfahren (hier nicht im einzelnen beschrieben) wird dann die Information dekodiert und einer Fehlerkorrektur unterzogen, so daß sie in einem Zentralrechner weiterverarbeitet werden kann. An den ersten Zirkulator Z1 schließt sich ein zweiter Zirkulator Z2 an. Dieser schaltet zwei unmodulierte, in den Generatoren G1 und G2 erzeugte Trägersignale mit verschiedenen Frequenzen auf die Antenne A1. Beide Trägersignale werden von der Antenne A1 gleichzeitig ausgestrahlt und von der Antenne A2 der gerade passierenden Antworteinheit AW empfangen.In the interrogation unit AF, a demodulator D with an upstream reception filter F1 is connected to an antenna A via a first circulator Z 1 . From the response signal sent by the response unit, the demodulator recovers the information modulated onto this signal and stored in the response unit. The information is then decoded and subjected to an error correction using methods generally known to the person skilled in the art (not described in detail here), so that it can be processed further in a central computer. A second circulator Z 2 is connected to the first circulator Z 1 . This switches two unmodulated carrier signals with different frequencies generated in the generators G 1 and G 2 to the antenna A 1 . Both carrier signals are emitted simultaneously by antenna A 1 and received by antenna A 2 of the response unit AW just passing through.

Ein Koppler K hinter der Antenne A2 in der Antworteinheit koppelt aus den empfangenen Trägersignalen einen größeren Energieanteil 90 % aus, der dann von einem Gleichrichter GL gleichgerichtet und als Betriebsenergie den Schaltungselementen in einem Informationsspeicher IS zugeführt wird. Ein dem Gleichrichter.vorgeschaltetes Filter F2 unterdrückt unerwünschte, an den Gleichrichterdioden entstehende Intermodulationsprodukte.A coupler K behind the antenna A 2 in the response unit couples a larger energy portion 90% out of the received carrier signals, which is then rectified by a rectifier GL and supplied to the circuit elements in an information memory IS as operating energy. A filter F 2 connected upstream of the rectifier undesirably suppresses intermodulation products created on the rectifier diodes.

Der Informationsspeicher IS ist z.B. mit ERPROM's oder RAM's ausgerüstet. Auf die für die Speicherelemente notwendigen, dem Fachmann geläufigen Taktsteuerungs- und Adressierschaltungen soll hier nicht näher eingegangen werden. Liegt nun nach einer kurzen Einschwingzeit an dem Informationsspeicher die von den Trägersignalen abgeleitete Vorspannung an, so beginnt der Auslesevorgang des Speiches. Die der jeweiligen Antworteinheit spezifische Information des Speichers gelangt zu einem Amplitudenmodulator M, der sie einem Träger aufmoduliert, welcher aus einer Umsetzung der beiden empfangenen Trägersignale hervorgeht..The information store IS is e.g. equipped with ERPROM's or RAM's. The clock control and addressing circuits necessary for the memory elements and familiar to the person skilled in the art will not be discussed in more detail here. If, after a short settling time, the bias voltage derived from the carrier signals is present at the information store, the reading process of the store begins. The information of the memory specific to the respective response unit arrives at an amplitude modulator M, which modulates it onto a carrier, which results from a conversion of the two received carrier signals.

Sollte irgendeine Störung in dem Informationsspeicher vorliegen, so sendet die Antworteinheit den dritten Träger unmoduliert aus, wo durch auf einfache Weise ein Funktionstest der Antworteinheit vorgenommen werden kann.If there is any malfunction in the information memory, the response unit sends the third carrier unmodulated, where a functional test of the response unit can be carried out in a simple manner.

Statt wie oben beschrieben, die Betriebsenergie für die Antworteinheit von den ihr zugeführten Trägersignalen abzuzweigen, kann die Antworteinrichtung natürlich auch von einer eigens installierten Betriebsenergiequelle gespeist werden. Eine andere Möglichkeit wäre die, die Antworteinheit induktiv mit Energie zu versorgen. In diesen Fällen würden bei der in der Figur gezeigten Schaltung der Koppler K, das Filter F2 und der Gleichrichter GL entfallen.Instead of branching the operating energy for the response unit from the carrier signals supplied to it, as described above, the response device can of course also be supplied by a specially installed operating energy source. Another possibility would be to supply the response unit with energy inductively. In these cases, the coupler K, the filter F 2 and the rectifier GL would be omitted in the circuit shown in the figure.

In Betracht gezogene Literaturstellen:

  • 1. Proceedings of the IEEE, August 1975
  • 2. DE-OS 3 101 636
Literature Considered:
  • 1. Proceedings of the IEEE, August 1975
  • 2. DE-OS 3 101 636

Claims (5)

1. Einrichtung zur Informationsübertragung zwischen einander passierenden Objekten, wobei von jeweils zwei sich einander vorbeibewegenden Objekten das eine mit einer Abfrageeinheit und das andere mit einer Antworteinheit bestückt ist, wobei beim Passieren der beiden Objekte die Abfrageeinheit einen Umsetzer der Antworteinheit speist, die dann ein mit der ihr zugeordneten Information moduliertes Antwortsignal aussendet, dadurch gekennzeichnet, daß die Abfrageeinheit (AF) zwei Trägersignale unterschiedlicher Frequenzen aussendet, die der Umsetzer (M) in der Antworteinheit (AW) in ein drittes Signal als Träger für die ihr eigenen Information umsetzt.1.Device for transmitting information between objects that pass each other, one of each of two objects moving past one being equipped with a query unit and the other with a response unit, the query unit feeding a converter of the response unit when passing the two objects, which then feeds one sends out the modulated response signal associated with it, characterized in that the interrogation unit (AF) transmits two carrier signals of different frequencies, which the converter (M) converts in the response unit (AW) into a third signal as a carrier for its own information. 2. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß in der Antworteinheit (AW) eine Abspaltung eines Energieanteils der empfangenen Trägersignale erfolgt, der als Betriebsenergie für die Antworteinheit ausgenutzt wird.2. Device according to claim 1, characterized in that in the response unit (AW) there is a split off of an energy portion of the received carrier signals, which is used as operating energy for the response unit. 3. Einrichtung nach Anspruch 1, dadurch gekennzeichnet, daß in der Abfrageeinheit (AF) zwei Trägersignalgeneratoren (G1, G2) über eine Koppelanordnung (Z2) an eine Antenne (A1) geschaltet sind und daß über eine weitere Koppelanordnung (Z1) das von der Antenne empfangene Signal einem Demodulator (D) zugeführt ist.3. Device according to claim 1, characterized in that in the interrogation unit (AF) two carrier signal generators (G 1 , G 2 ) via a coupling arrangement (Z 2 ) to an antenna (A 1 ) are switched and that the signal received by the antenna is fed to a demodulator (D) via a further coupling arrangement (Z 1 ). 4. Einrichtung nach Anspruch 2, dadurch gekennzeichnet, daß die Antworteinheit (AW) einen Gleichrichter (GL) für die aus den empfangenen Trägersignalen ausgekoppelten Signalanteile enthält und daß dem Gleichrichter ein Filter (F2) zum Unterdrücken der an den Gleichrichterdioden entstehenden Intermodulationsprodukte vorgeschaltet ist.4. Device according to claim 2, characterized in that the response unit (AW) contains a rectifier (GL) for the signal components coupled out from the received carrier signals and that the rectifier is preceded by a filter (F 2 ) for suppressing the intermodulation products formed on the rectifier diodes . 5. Einrichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß im Falle einer Störung der Antworteinheit (AW) diese ein unmoduliertes Antwortsignal aussendet.5. Device according to claim 1 or 2, characterized in that in the event of a fault in the response unit (AW) this emits an unmodulated response signal.
EP82111964A 1982-12-23 1982-12-23 Device for the transmission of information between objects passing one another Withdrawn EP0111591A1 (en)

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EP82111964A EP0111591A1 (en) 1982-12-23 1982-12-23 Device for the transmission of information between objects passing one another

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0150382A2 (en) * 1984-01-18 1985-08-07 ANT Nachrichtentechnik GmbH Informations transmitting system
EP0199162A2 (en) * 1985-04-20 1986-10-29 ANT Nachrichtentechnik GmbH Information transmission system
EP0178924A3 (en) * 1984-10-17 1988-08-24 Canadian National Railway Company (Canadian National) Electronic identification system
FR2645309A1 (en) * 1989-04-04 1990-10-05 Usil Flandres Artois DEVICE FOR DETECTING THE PASSAGE OF AT LEAST ONE MOBILE AT AT LEAST ONE POINT DETERMINED BY ITS MOVEMENT

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2122260A1 (en) * 1970-05-05 1971-11-18 Sfim Method and arrangement for identifying a vehicle driving through a detection zone
DE1791287B1 (en) * 1967-03-20 1975-03-13 Siemens Ag System for automatic wireless transmission of multi-digit information between mutually movable interrogation and response devices, in particular the numbers of railway vehicles to stationary interrogation devices
DE3027981A1 (en) * 1980-07-24 1982-02-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Identification system for rail vehicle recognition - uses enquiry and answering unit for transmission and reception of identifying signal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1791287B1 (en) * 1967-03-20 1975-03-13 Siemens Ag System for automatic wireless transmission of multi-digit information between mutually movable interrogation and response devices, in particular the numbers of railway vehicles to stationary interrogation devices
DE2122260A1 (en) * 1970-05-05 1971-11-18 Sfim Method and arrangement for identifying a vehicle driving through a detection zone
DE3027981A1 (en) * 1980-07-24 1982-02-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Identification system for rail vehicle recognition - uses enquiry and answering unit for transmission and reception of identifying signal

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0150382A2 (en) * 1984-01-18 1985-08-07 ANT Nachrichtentechnik GmbH Informations transmitting system
EP0150382A3 (en) * 1984-01-18 1985-10-02 Ant Nachrichtentechnik Gmbh Informations transmitting system
EP0178924A3 (en) * 1984-10-17 1988-08-24 Canadian National Railway Company (Canadian National) Electronic identification system
EP0199162A2 (en) * 1985-04-20 1986-10-29 ANT Nachrichtentechnik GmbH Information transmission system
EP0199162A3 (en) * 1985-04-20 1988-09-14 Ant Nachrichtentechnik Gmbh Information transmission system
FR2645309A1 (en) * 1989-04-04 1990-10-05 Usil Flandres Artois DEVICE FOR DETECTING THE PASSAGE OF AT LEAST ONE MOBILE AT AT LEAST ONE POINT DETERMINED BY ITS MOVEMENT
EP0391775A1 (en) * 1989-04-04 1990-10-10 Universite Des Sciences Et Techniques De Lille Flandres-Artois (U.S.T.L.) Device for the detection of the passage of at least one moving body at at least one determinate point of its displacement
US5068655A (en) * 1989-04-04 1991-11-26 Universite Des Sciences Et Techniques De Lille (U.S.T.L.) Flandres Artois Device for detecting the passage of at least one mobile body in at least one location fixed by its travel

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